/**
 * Copyright 2021 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { DName } from './DName';
/**
 * This generates a x509 sigining certificate for code signing. It is the users responsibility to
 * protect this certificate from being lost or stolen as this can prevent future uploads to the App
 * Stores. See {@link https://chromeos.dev/en/publish/pwa-in-play#signing-key | this documentation}
 * for more info. The certificate generated has a lifespan of 25 years as recommended by the
 * Android documentation.
 *
 * @param dname - Distinguished Name
 * @param password - password to protect your key
 * @returns A promise of a base64 encoded pkcs12 der certificate.
 */
export declare function generateX509(dname: DName, password: string, alias?: string): Promise<string>;
/**
 * This signs the signature file using a certificate stored in a PKCS#12 keystore and returns a pem encoded
 * pkcs7 keystore of the signed file. More infomation can be found in these documents:
 * {@link https://github.com/digitalbazaar/forge#pkcs7|forge library documents} and
 * {@link https://docs.oracle.com/javase/7/docs/technotes/guides/jar/jar.html#:~:text=.RSA%20(PKCS7%20signature%2C%20SHA-256%20%2B%20RSA) | oracle jar signer spec}
 * @param signatureFile - contents of the signature file (a *.SF file)
 * @param keystoreContents - contents of the keystore that is der encoded read from disk.
 * @param password - The password to the keystore.
 * @param alias - The alias if the certificate within the keystore.
 * @returns
 */
export declare function SignString(signatureFile: string, keystoreContents: string, password: string, alias: string): string;